content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * -------------------------
   * CategoryURLGenerator.java
   * -------------------------
   * (C) Copyright 2002-2008, by Richard Atkinson and Contributors.
   *
   * Original Author:  Richard Atkinson;
   * Contributors:     David Gilbert (for Object Refinery Limited);
   *
   * Changes:
   * --------
   * 05-Aug-2002 : Version 1, contributed by Richard Atkinson;
   * 09-Oct-2002 : Fixed errors reported by Checkstyle (DG);
   * 10-Apr-2003 : Replaced reference to CategoryDataset with
   *               KeyedValues2DDataset (DG);
   * 23-Apr-2003 : Switched around CategoryDataset and KeyedValues2DDataset
   *               (again) (DG);
   * 13-Aug-2003 : Added clone() method (DG);
   * 14-Jun-2004 : Removed clone() method - classes that implement the interface
   *               should implement the PublicCloneable interface instead,
   *               wherever possible (DG);
   * ------------- JFREECHART 1.0.x ---------------------------------------------
   * 02-Feb-2007 : Removed author tags from all over JFreeChart sources (DG);
   * 13-Dec-2007 : Updated API docs (DG);
   *
   */
  
  package org.jfree.chart.urls;
  
  import org.jfree.data.category.CategoryDataset;
  
  /**
   * A URL generator for items in a {@link CategoryDataset}.
   */
  public interface CategoryURLGenerator {
  
      /**
       * Returns a URL for one item in a dataset. As a guideline, the URL
       * should be valid within the context of an XHTML 1.0 document.  Classes
       * that implement this interface are responsible for correctly escaping
       * any text that is derived from the dataset, as this may be user-specified
       * and could pose a security risk.
       *
       * @param dataset  the dataset.
       * @param series  the series (zero-based index).
       * @param category  the category.
       *
       * @return A string containing the URL.
       */
      public String generateURL(CategoryDataset dataset, int series,
              int category);
  
  }
  